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Finding the Fourth Proportional to 333,695.46, 500,539.02 and 80,978.10

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Solution

The fourth proportional to 333,695.46, 500,539.02 and 80,978.10 is: 121,466.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,695.46 : 500,539.02 = 80,978.10 : x
  2. Step 2: Convert to fraction form
    333,695.46/500,539.02 = 80,978.10/x
  3. Step 3: Cross multiply
    333,695.46x = 500,539.02 × 80,978.10
  4. Step 4: Simplify right side
    333,695.46x = 40,532,698,815.46
  5. Step 5: Solve for x
    x = 40,532,698,815.46/333,695.46
  6. Step 6: Final answer
    x = 121,466.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.